Dhegiha - any member of a Siouan people speaking one of the Dhegiha languages

Missouri, Show Me State, MO - a midwestern state in central United States; a border state during the American Civil War, Missouri was admitted to the Confederacy without actually seceding from the Union

river - a large natural stream of water (larger than a creek); "the river was navigable for 50 miles"

Dhegiha - a branch of the Siouan languages